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        // 将多个对象的属性和方法都合并到目标对象上面
        // 格式是（目标对象 ， 后面跟着多个或者一个原对象）
        let target  = {}//目标对象
        let name1 ={
            name:"img",
            age:"123"
        }
        let name2 ={
            sex :"男"
        }
        let name3 ={
            sex:"女"
        }
        Object.assign(target , name1 ,name2 ,name3);
        console.log(target)
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